A historic dam made famous for its turbines and feature in a Hollywood classic.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

A memorial to the United States's first wildlife refuge warden.

This small island was the first National Wildlife Refuge ever created in the United States.

Bronze footprints mark the path where a civil rights leader tried to march in peaceful protest before being knocked unconscious.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

This railroad and oil tycoon's lavish estate now stands as a time capsule of the Gilded Age.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

A mysterious castle built as a monument to lost love.

Many of the murals covering this sleepy Florida town hide some sort of intentional error.

A failed, un-built suburb that has been going feral for decades.

Grab a slice of pizza next to the remains of the "human monkey" who ran for mayor.

A time capsule of Floridian history fights to survive on the banks of Chokoloskee Bay.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

The smallest post office in the United States is no bigger than a broom closet.

One of the last of the great 1920s movie palaces is a Floridian Greco-Spanish-Persian dreamscape.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

This small museum concentrates on the juicy history of orange production in Florida.

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

How Quincy, Florida became the richest town per capita due to one man's shrewd business acumen and taste for fizzy drinks.

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

The highest point in South Carolina was once owned by an energy company that neglected it but now the state is taking it back.